Top Definition
OPK
One position kill
Hack in fps games which lets a person kill everyone without moving, due to everyone vaccumed in front of him. Generally used by people who can't play.
Person 1: zomg opk
Person 2: kick him
Person 3 (hacker): WTF
by kaldoscope October 13, 2009
7 more definitions
OPK
Orland Park Killas, although they kill nothing, they're a group of rag tag teens who vandalism and do ignorant hood rat activities in the suburb of Chicago know as Orland Park. Widely hated by most everyone, OPK believes they are "Savages" and are often found spouting nonsense talking about their "Squad". They are mostly all white, but act black and think they are ghetto
"Bro did you see OPK knock that old lady's garbage can over?"

"Be careful out in Orland Park, OPK might threaten to do something to you"
"Woah dude did you hear OPK talk back to their teachers!"
by HoodLuicifer February 02, 2015
OPK
Other People's Kids. Simple as that
I love my kids to death, but I usually feel the need to strangle OPK's.
by yankeemofo March 11, 2009
A group of infamously hated juniors from Gertz-Ressler High school! They are wicked awesome and give the seniors a backhand whip of being exciting. The OPK's are the Original Party Kidds and can kick anyones ass anytime, in anything, and anywhere!
awesome, juniors, OPKs used to be Dem Party Boy and Girls
by Pinkiie Rocksz, Killuh Pinky January 15, 2009
Other Peoples' Kids.

I like my own children just fine, but man, I really can't STAND OPKs.
by Chrome Toaster September 18, 2008
OPK
Ovulation predictor kit
While trying to conceive a baby you take an OPK so you know when you're ovulating.

Yay I got a positive OPK!
Sad day I got a negative OPK.
by IamwhoIam... September 20, 2011
opk
Over Privileged Kid. The kind that gets designer clothes for their layette set, wears those special-edition Pampers, and is taught from the moment they're born that they hung the moon, they are a Special Case, and the world revolves around them.

Can be identified by their tendency to scream as if being disembowelled when they are denied something they want. This trait can--and usually does--last a lifetime.
Nobody wants to play with Jordan, she's such an OPK.
by orinoco womble August 02, 2010

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